21 lines
1.0 KiB
C
21 lines
1.0 KiB
C
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#ifndef EXDELEGATE_H
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#define EXDELEGATE_H
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#include <QStyledItemDelegate>
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class ExDelegate : public QStyledItemDelegate
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{
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public:
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ExDelegate();
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public:
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//若是写代理的组件，那么必须要有下面这是个重写这四个函数
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virtual QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override; //创建用于编辑的模型数据的widget组件，如一个QComboBox组件
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virtual void setEditorData(QWidget *editor, const QModelIndex &index) const override; //从数据模型获取数据，显示在代理组件editor之中，让其编辑
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virtual void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override; //代理组件editor上的数据更新到数据模型
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virtual void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override; //用于给widget组件设置一个合适的大小
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};
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#endif // EXDELEGATE_H
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